The Huntington Library, Art Museum, and Botanical Gardens was established 100 years ago. But Henry Huntington’s footprint was far bigger than that. DnA looks at the man who was “probably the most important urban planner L.A. has ever had,” and at 1919, an exhibition about that turbulent year. Plus, Paul Fortune came to LA for sex and drugs and wound up with a glittering design career. He talks about “Notes on Decor, etc.”